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From: Arnd Bergmann <arnd@kernel•org>
To: linux-kernel@vger•kernel.org
Cc: Arnd Bergmann <arnd@arndb•de>, Karsten Keil <isdn@linux-pingi•de>,
	Kees Cook <keescook@chromium•org>,
	Justin Stitt <justinstitt@google•com>,
	netdev@vger•kernel.org
Subject: [PATCH 26/34] isdn: kcapi: don't build unused procfs code
Date: Wed,  3 Apr 2024 10:06:44 +0200	[thread overview]
Message-ID: <20240403080702.3509288-27-arnd@kernel.org> (raw)
In-Reply-To: <20240403080702.3509288-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb•de>

The procfs file is completely unused without CONFIG_PROC_FS but causes
a compile time warning:

drivers/isdn/capi/kcapi_proc.c:97:36: error: unused variable 'seq_controller_ops' [-Werror,-Wunused-const-variable]
static const struct seq_operations seq_controller_ops = {
drivers/isdn/capi/kcapi_proc.c:104:36: error: unused variable 'seq_contrstats_ops' [-Werror,-Wunused-const-variable]
drivers/isdn/capi/kcapi_proc.c:179:36: error: unused variable 'seq_applications_ops' [-Werror,-Wunused-const-variable]
drivers/isdn/capi/kcapi_proc.c:186:36: error: unused variable 'seq_applstats_ops' [-Werror,-Wunused-const-variable]

Remove the file from the build in that config and make the calls into
it conditional instead.

Signed-off-by: Arnd Bergmann <arnd@arndb•de>
---
 drivers/isdn/capi/Makefile | 3 ++-
 drivers/isdn/capi/kcapi.c  | 7 +++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/isdn/capi/Makefile b/drivers/isdn/capi/Makefile
index 352217ebabd8..4fd3a4d7133f 100644
--- a/drivers/isdn/capi/Makefile
+++ b/drivers/isdn/capi/Makefile
@@ -2,4 +2,5 @@
 # Makefile for the CAPI subsystem used by BT_CMTP
 
 obj-$(CONFIG_BT_CMTP)			+= kernelcapi.o
-kernelcapi-y				:= kcapi.o capiutil.o capi.o kcapi_proc.o
+kernelcapi-y				:= kcapi.o capiutil.o capi.o
+kernelcapi-$(CONFIG_PROC_FS)		+= kcapi_proc.o
diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index 136ba9fe55e0..c5d13bdc239b 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -917,13 +917,16 @@ int __init kcapi_init(void)
 		return err;
 	}
 
-	kcapi_proc_init();
+	if (IS_ENABLED(CONFIG_PROC_FS))
+		kcapi_proc_init();
+
 	return 0;
 }
 
 void kcapi_exit(void)
 {
-	kcapi_proc_exit();
+	if (IS_ENABLED(CONFIG_PROC_FS))
+		kcapi_proc_exit();
 
 	cdebug_exit();
 	destroy_workqueue(kcapi_wq);
-- 
2.39.2


  parent reply	other threads:[~2024-04-03  8:11 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-03  8:06 [PATCH 00/34] address all -Wunused-const warnings Arnd Bergmann
2024-04-03  8:06 ` [PATCH 05/34] 3c515: remove unused 'mtu' variable Arnd Bergmann
2024-04-03  8:06 ` [PATCH 19/34] sunrpc: suppress warnings for unused procfs functions Arnd Bergmann
2024-04-03  8:59   ` Jeff Layton
2024-04-03 13:20   ` Chuck Lever
2024-04-03  8:06 ` Arnd Bergmann [this message]
2024-04-03  8:06 ` [PATCH 28/34] net: xgbe: remove extraneous #ifdef checks Arnd Bergmann
2024-04-03  8:06 ` [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations Arnd Bergmann
2024-04-03  9:13   ` Krzysztof Kozlowski
2024-04-03  9:30   ` Andy Shevchenko
2024-04-03 12:47     ` Corey Minyard
2024-04-03 13:23       ` Andy Shevchenko
2024-04-03 12:47   ` Corey Minyard
2024-04-03 16:09   ` Jarkko Sakkinen
2024-04-09 13:48   ` Greg Kroah-Hartman
2024-04-23  7:33   ` Xu Yilun
2024-04-23  9:52   ` Peter Rosin
2024-04-06  5:20 ` [PATCH 00/34] address all -Wunused-const warnings patchwork-bot+netdevbpf
2024-04-10  8:02 ` (subset) " Sebastian Reichel
2024-04-22  8:16 ` Michael Ellerman
2025-01-27 13:24 ` Andy Shevchenko

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